id,summary,reporter,owner,description,type,status,priority,component,version,resolution,keywords,cc,guest,host
896,"Error ""hard disk with two children"" after disk full during ""discard current snapshot""",fjp,,"I had a fairly long series of snapshots without noticing that I was running out of disk space. I wanted to get back to an earlier snapshot, so selected ""discard current snapshot and state"".
After a while I got an error that the operation failed because lack of diskspace. After freeing up some space I tried again but the discard would not start with an error message saying that a disk had two children (sorry, don't have exact message anymore).
The attached screenshot shows the situation in the disk manager.
I managed to recover by deleting one of the children from ~/.VirtualBox/VirtualBox.xml (and modifying a reference to that snapshot in the machine's XML file). After that deleting the snapshots worked again.
I'm running the Debian virtualbox-ose 1.5.2 package.
",defect,closed,minor,VM control,VirtualBox 1.5.2,obsolete,snapshot,,other,other